Material: Grade
A BK7 glass
Designed to
deviate an incident beam by 90o without
inverting or reversing the image Commonly
used in plumb level, surveying, alignment, range
finding and optical tooling
Penta Prism Specifications
Geometry and imaging
Dimension Tolerance:+/- 0.2mm
Flatness: λ/4 at 632.8 nm
Surface Quality: 60-40 scratch and dig
Clear Aperture: >80%
Bevel: 0.2 mm to 0.5 mm x 45o
Reflectivity: R > 95% ( for design wavelength) per face
90o deviation tolerance :10" or 30" Coating on input and output sides: Available upon request
with R<0.2% at the central wavelength.
Standard Products
Part No.
Size A x h (mm)
Deviation
PEP1002
2.5 x 2.5
10"
PEP1007
7x5
PEP1010
10x10
PEP1015
15x15
PEP1020
20x20
PEP3002
2.5 x 2.5
30"
PEP3007
7x5
PEP3010
10x10
PEP3015
15x15
PEP3020
20x20
Other dimensions are routinely fabricated by Newlight Photonics.
Please contact us for the prisms that best
suit your applications.